Reinforcing system for concrete.



H. H; LAMPERT.

nam oncms SY-STEM ron coucam.

APPLICATION FIITED DEC. 26. 1917- Patentd m 7,1918.

2 SHEETS-SHEET 1.

I H. H. LAMBERT.

REINFORCLNG SYSTEM FOR CONCRETE.

APPLICATION FILED-DEC. 25. 1917- Patentd May 7,1918.

2 SHEETS-SHEET 2. v

HENRY a. mirrnnnor crucaeo, ILL INoIs.

aEINroncnvG SYSTEM non CONCRETE Specification of Letters Patent. p.Patented May 7,1918.

Application filed December-26. 1917. .Seria1No. 208,966.

To all whom it may concern:

Be it known that I, HENRY H. LAMPERT, a citizen of the United States ofAmerica, and a resident of Chicago, county of Cook, and State ofIllinois, have invented certain I new and useful Improvements inReinforciiig Systems for Concrete, of which the following is aspecification. I

The main objects of this invention are to provide an improvedreinforcing system for concrete embodying the use of a plurality of'rodsor bars spaced apart in rows; to provide improved means for spacing saidrods;

to provide improved'means for supporting said spacing means rigidly inplace; to provide improved means for locking said supporting means andsaid spacing means together; to provide improved meansfor securing thereinforcing rods to said spacing means; and to provide a system ofreinforcing of this kind particularly adapted for use inkthe formationof beams, pillars, and the An illustrative embodiment of this inven tionis shown in the accompanying drawings, inwhich- I forcing arrangedthereln.

Fig.2 is a similar view showing a slight modification of the reinforcingsystem as rega'dsfthe supporting of the first row of ro s.

Fig. 3 is a transverse sectional detail taken on the line 33 of Fig. 1.

Fig. 4 is a similar view taken on the line 4:4: of Fig. 2.

Fig. 5 is a perspective view of one of the supporting members whichsupports the second spacing member above the first spacing member in thesystem shown in Fig.1. 1

Fig. 6 is a similar view of the supporting members which support-thefirst or lowermost spacing member in the system shown in Fig. 2.

Fig. 7 is 'a perspective view of one of the supporting members used forsupporting the I spacing members on edge.

This improved system of reinforcing involves the use of a plurality ofspacing members 1 supported 'in spaced relation one above another bymeans of supporting members 3 so as to support rows of reinforclng rodsorbars 2 thereon. Fastening means and locking means are provlded forsecuring the rods inplaceon the spacing members and for locking thespacing members and the supporting members together The spacing members1 are herein shown in the form of fiat, comparatively thin, metal stripswhich vary in width, depending upon the distance the rods "are to bespaced apart. These strips are used either fiat or on edge. When usededgewise, notches are formed in the u per edges in which the bars 2 areto be seated. The spacing of the notches along the strips serves toproperly space the bars in their respective rows.

spacing strips 1 are held in spaced relation are in the form of chairs 3each comprising.

essentially a pair of depending legs 4 and 5 connected together at theirupper ends and spaced apart at'their lower ends. The exact form of thesechairs depends somewhat upon the place in the system in which they Thesupporting members by which the I are to be used and. the arrangementof'the spacing members which they are to support. I When the first orlowermost spacing strip is supported with its face substantially par-Figure 1 is a cross section of a mold for a" beam, showing the improvedsystem of rein-- allel to the adjacent Wall-of the mold, and the otherstrips above are disposed edge-- wise to said first strip,-thesupporting members for said firststrlp are preferably of the form 7shown in connection with said first strip in Fig. 1, and the supportingmembers for the strip next above are preferably of the form shown inFig. 5 When the first or lowermost spacing strip is supported on edge asregards the adjacent wall of the mold, the supporting membersthe'refor'are nection at their upper ends provides a transverse seatpart upon which thespacin'g memher 1 rests. The other forms ofsupporting members 3- herein shown are all of substantially an invertedV-s'hape construction.

In the form shown in Fig. 5, a notch or recess 6 extends inwardly fromthe upper end into which a spacing strip 1 is received. Lugs 7 areformed on the ends of the legs 4 and 5 which are adapted to extendthrough as shown in Figs. '2 and 4. In the. form shown in Fig.7, notches6 extend inwardly from the upper end and other notches .9 extendupwardly from the'bottoms of the legs 4 and 5. The notches 9 are adaptedto permit this supporting member 3 to-straddle a spacing member 1 abovewhich it is to support another spacing member, and said other spacingmember is received in the notches 6.

Fastening means may be provided, if desired, for securing thereinforcingv rods 2 to the respective spacing members 1, which may beaccomplished in various ways, as illustrated in the drawings. When thelowermost spacing member lis disposed with the face substantiallyparallel with the adjacent wall of the mold, the rods maybe held inplace by means of fingers 10 bent around the rOdS. These fingers may beformed either on the supporting member3', which is the form herein shownand which is more fully described and claimed in my copendingapplication Serial No. 202,i39,'filed November 17, 1917, or they maybeintegrally formed on the spacing member itself, as shown and describedin my copending application, Serial No. 207 ,114, filed December-14:,1917. For the bars supported on the uppermost or outermost spacingmember, the locking is conveniently accomplished by having pieces ofwire 11 secured in apertures '12formed in the spacing member 1 adjacentto the points at which the bars are to be supported, which wires'areadapted to be twisted around the bars as shown in the figures. Inthemodifications herein shown, the intermediate rows of bars are retainedin place through their being supported in the notches formed in theedges of the spacing members 1 and having the spacing members aboveplaced in such close proximity to those below that the space between theopposed edges of the spacing members is too narrow to permitdisplacement of the rods. The retention of the mtermediate rods intheirrespective places may be enhanced by placing the chairs orsupporting members 3 astride the rods as indicated in some parts of thefigures.

The locking means for securing the spacing members 1 and the supportingmembers 3 rigidly together are most conveniently provided by havingshoulders or lugs 13 upset from the plane of the strips or spacingmembers 1 and located so that when the strips rest in the bottoms of thenotches 6, said lugs or shoulders engage the under side of the upper endof the chairs.

In order to facilitate-the flow of concrete in and'around all parts ofthe supporting and spacing means for the rods, openings 1 1 are formedat points along the spacing members 1. v

It will be understood that numerous de tails of the constructions shownmay be altered or omitted and still other modifica- 1 tions producedwithout" departing from the members supporting said spacing members oneupon and above the other, and means for securing said spacing membersand said'supporting members together.

3. A reinforcing system for concrete, comprising aplurality of rods,spacing members supporting said rods in rows, supporting memberssupporting said spacing members one upon and above the other, andfastening means for securing said rods to the respective spacingmembers. I

4:. A reinforcing system for concrete, com prising a plurality of rods,spacing members supporting said rods in rows, supporting memberssupporting said spacing members one upon and abOVe the other, andfingers extending'upwardly above certain of said spacing members andadapted to be bent around the rods supported thereon.

5. A, reinforcing system for concrete, comprising a plurality of rods,spacing members supportingsaid rods in rows, supporting memberssupporting said spacing members one upon and above the other, and wirescarried by certain of said spacing members adjacent to and adapted to betwisted around the rods supported .on said member.

6. A reinforcing system for concrete, com prising a plurality of rods,spacing members in the formof thin metal strips supporting said rods inrows, and supporting members having recesses formed therein whereby saidsupporting members are adapted to receive said strips and support themone above another.

7 A reinforcing system for concrete, comprising a plurality of rods,spacing members in the .form of thin metal strips supporting said rodsin rows, and supporting members each comprising a pair of depending legsspaced apart at their lower ends and .connected together at their upperends, said legs having notches extending inwardlyfrom the upper andlower ends thereof whereby the lower parts of said supporting membersstraddle one of said strips and have another of said strips resting inthe notches in the upper ends thereof so as to support said strips oneabove another.

8. A reinforcing system for concrete, comprising a plurality of rods,spacing members in the form of thin metal strips supporting said rods inrows, supporting members each comprising a pair of depending legs spacedapart at their lower ends and connected together at their upper ends,said legs having notches extending inwardly from the upper and lowerends thereof whereby the lower parts of said supporting members straddleone of said strips and have another of said strips resting in thenotches in the upper ends thereof so as to support said strips one aboveanother, and coacting shoulders on said strips and said supportingmembers adapted to have interlocking engagement for securing said stripsand supporting members together.

9. A reinforcing system for concrete, comprising a plurality of rods,spacing members in the formof thin metal strips supporting said rods inrows, supporting members each comprising a pair of depending legs spacedapart at their lower ends and connected together at their upper ends,said legs having notches extending inwardly from the upper and lowerends thereof whereby the lower parts of said supporting members straddleone of said strips and have another of said strips resting in thenotches in the upper ends thereof so as to support said strips one aboveanother, and shoulders upset from the plane of said strips and adaptedto engage'said supporting members under the upper ends thereof so as tosecure said strips to said supporting members.

10. A reinforcing system for concrete, comprising a fiat metal spacingmember, supporting members for supporting said spacing member on a moldwith the face thereof substantially parallel with one Wall of said mold,a row of reinforcing rods supported on said spacing member, othersupporting members supported on said spacing member, another flat metalspacing member mounted on edge on said other supporting members, and arow of reinforcing rods supported on said second-mentioned spacingmember.

- 11. A reinforcing system for concrete, comprising a fiat metal spacingmember, supporting members for supporting said spacing member on a moldwiththe face thereof substantially parallel with one wall thereof, a rowof reinforcing rods supported 011 said spacing member, other supportingmembers supported on said spacing member, each of said other supportingmembers being in the form of a pair of depending legs spaced apart attheir lower ends and connected together at their upper ends and havinglugs on said legs bent to lock said supporting members to said spacingmember, said supporting members havin notches formed in the upper endsthereo a flat metal spacing member'supported on ed e in the notches insaid supporting mem ers, and reinforcing rods supported on said seccud-mentioned spacing member.

12. A reinforcing system for concrete, comprising a flat spacing striparranged on edge for supporting reinforcing rods in a row, and membersfor supporting said strip, each of said members comprising a' pair oflegs connected together at their upper ends and spaced apart at theirlower ends and having a seat formed thereon to receive and support saidstrip. a

13., A reinforcing. system for concrete, comprising a flat spacing striparranged on edge for'supporting reinforcing rods in a row, and membersfor supporting said strip, each of said members comprising a pair oflegs connected together at their upper ends and spaced apart at theirlower ends and having a slot extendinginwardly from the upper endthereof so as to form a seat adapted to receive and support said strip.

14:. A reinforcing systenr for concrete comprising a flat spacing striparranged on edge for supporting reinforcing rods in a row, and membersfor supporting said strip, each of said members comprising a pair oflegs connected together at one end and spaced apart at the other, andhaving a seat formed thereon so as to receive and support said strip.

Sgned at Chicago this 19th day of Dec. 191

HENRY H. LAMPERT.

